238791969 has 64 divisors (see below), whose sum is σ = 397850880. Its totient is φ = 142347456.

The previous prime is 238791961. The next prime is 238791983. The reversal of 238791969 is 969197832.

It is not a de Polignac number, because 238791969 - 2³ = 238791961 is a prime.

It is a super-2 number, since 2×238791969² = 114043208917793922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238791961) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1051834 + ... + 1052060.

It is an arithmetic number, because the mean of its divisors is an integer number (6216420).

Almost surely, 2^238791969 is an apocalyptic number.

It is an amenable number.

238791969 is a deficient number, since it is larger than the sum of its proper divisors (159058911).

238791969 is an equidigital number, since it uses as much as digits as its factorization.

238791969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 280 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 238791969 is about 15452.8951656316. The cubic root of 238791969 is about 620.4020709724.

The spelling of 238791969 in words is "two hundred thirty-eight million, seven hundred ninety-one thousand, nine hundred sixty-nine".